Help with a glitch

Not sure if this is the right place to post this but I think my game has a glitch. I know sometimes the villagers will ask you for "favors" like to catch a certain fish or big for them. but one of my villagers, Flo, must have asked for a favor and I cannot for the life of me remember what it is, but when I try to talk to her and click the "What did you want?" option all she says is "That Rex, right? What a scatterbrain. Sorry to fob this off on you, but I trust you to get it done for me, cha." and when I go to Rex his dialogue option is "Delivery Time!" and when it goes to my pocket there is nothing I can select as his "delivery".

I originally thought oh well I won't complete this favor snd they will forget and move on but its been days now and I cant talk to them or give them gifts to improve our friendship.